Thermo Scientific Lindberg/Blue M Mini-Mite TF55030, Installation And Operating Manual

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Mini-mite Tube Furnace 304243H02 | 6-34
Main Controller: 1x8 & 5x16 Segment Programmable |
Chapter 6
*Level 1+2 Read Only states that, Level 1 gives Read only access to user where as
Level 2 gives Write access along with Read access.
**COMMS units only.
Soft Start Timer
The timer is used to start a process at reduced power and/or reduced setpoint. It may be
used where it is required to dry out a heater before applying full power, such as hot runner
applications.
It is initiated by any one of the following:

Switching on power;

Pressing and together;

Setting the parameter T.STAT to run;

A command through serial communications;

A logic input suitable configured.
When the timer status = run, the control output is limited to a reduced start up power until
parameter SS.SP is exceeded. If the PV is already greater than SS.SP the reduced power
limit is not applied and the timer times out.
When the timer status = reset, the control output is controlling at a level limited by the
output high and low limits.
Soft Start Setpoint
A soft start timer is provided to control start-up of sensitive heaters. If these heaters are
stressed by applying 100% power from cold they could be damaged. The soft start facility
introduces a power limit until either the safe operating temperature (SS.SP) is reached or
a time duration has elapsed (TIME).
The SS.SP is the threshold for the soft-start timer. If the PV is below this value at power up
then the soft start timer is started.
29 ADDR** Comms Address Level 2 Read/Write 1 7-47
30 BAUD** BAUD RATE Level 2 Read/Write 9600 7-47
31 IN.TYP Input Type Level 2 Read Only K Type
Thermocouple -
32 ID Customer ID Level 2 Read Only 301 (without
COMMS)
302 (With COMMS) -
No
.
Parameter Description Level Access Value
Page
No.